Profit BidProfit Bid

28% lower CPA with profit-weighted Smart Bidding

A Shopify subscription-adjacent brand relied on blended ROAS. Profit Bid tied Google Ads to SKU-level margin and stopped over-indexing on trial kits.

Store
Shopify
Ads
Google Ads
Duration
60 days

The challenge

Customer acquisition cost rose 35% YoY while MER looked stable. Trial SKUs drove inflated ROAS. Repeat-purchase products with better LTV had thin front-end margin that POAS made visible immediately.

Approach

  1. Shopify OAuth connect with nightly order sync and refund retractions.
  2. Configured COGS for bundles and intro offers separately from refill SKUs.
  3. Enabled POAS upload to primary Purchase conversion action.
  4. Turned on Enhanced Conversions with CMP-approved consent paths.
  5. Accepted Proby AI recommendations for budget shifts toward A-label ad groups.
Performance

POAS trajectory — 60 days

Profit Bid
  • Google Ads CPA€29.5
    -28%
  • POAS on Search118%
    Above breakeven target
  • ROAS (Google UI)390%
    Stable revenue, better margin

Results

Google Ads CPA

€41€29.5

-28%

POAS on Search

71%118%

Above breakeven target

ROAS (Google UI)

420%390%

Stable revenue, better margin

Refund-adjusted conv.

ManualAutomatic

Retractions enabled

Our agency used to send ROAS screenshots. Now we review POAS and label mix every Monday — it's the first time finance trusted paid media numbers.

James T., Founder, Shopify DTC brand
Pricing

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